Side rail



FIG. 1 is a perspective view of a side rail showing my new design, it being understood that the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is an enlarged side elevational view taken along line 2--2 in FIG. 1;

FIG. 3 is an enlarged side elevational view taken along line 3--3 in FIG. 1;

FIG. 4 is an enlarged top plan view thereof;

FIG. 5 is an enlarged rear elevational view taken along line 5'5 in FIG. 2;

FIG. 6 is an enlarged front elevational view taken along line 6--6 in FIG. 2; and

FIG. 7 greatly enlarged cross sectional view taken along line 7--7 in FIG. 2. 

The ornamental design for a side rail, substantially as shown and described. 